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2020 Fiscal Year Final Research Report

Elucidation of mechanism for serum phosphate homeostasis regulated by excercise and application for prevention and treatment of CKD-MBD

Research Project

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Project/Area Number 19K22811
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 59:Sports sciences, physical education, health sciences, and related fields
Research InstitutionThe University of Tokushima

Principal Investigator

TAKETANI Yutaka  徳島大学, 大学院医歯薬学研究部(医学域), 教授 (30263825)

Project Period (FY) 2019-06-28 – 2021-03-31
Keywords高リン血症 / 慢性腎臓病 / 骨ミネラル代謝異常 / 運動療法
Outline of Final Research Achievements

Hyperphosphatemia is a typical phenotype in chronic kidney disease, and causes bone and mineral disease that affects fractures, cardiovascular diseases and mortality risk. Dietary phosphate restriction may cause malnutrition. If exercises can enhance phosphate uptake in skeletal muscles, it may improve hyperphosphatemia as well as maintain or increase skeletal muscle volume and/or bone volume. In this study, we employed a model animal of chronic kidney disease. The animals were given different strength exercise during 5 weeks. After the exercise treatment, the animals demonstrated increased skeletal muscle volume and improved hyperphosphatemia without deterioration of kidney function. Therefore, exercises would be useful to improve hyperphosphatemia in chronic kidney disease.

Free Research Field

臨床栄養学

Academic Significance and Societal Importance of the Research Achievements

慢性腎臓病患者において、高リン血症は慢性腎臓病に伴う骨ミネラル代謝異常という病態を引き起こし、骨折や心血管疾患および死亡リスクを高めることが知られている。現在は薬物療法と食事療法による治療が行われるが、低栄養による筋肉量の減少などのリスクを伴う。古くは慢性腎臓病患者に運動は推奨されなかったが、近年はその効果が期待されている。本研究成果により、慢性腎臓病においても、運動は、腎機能の悪化を招くことなく、筋肉量が増加すると共に、高リン血症を改善させることが示された。慢性腎臓病対策はわが国の大きな課題である。運動療法が慢性腎臓病患者の病態改善に役立つことが期待される。

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Published: 2022-01-27  

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